Enchanted sand castle, brilliant winged fish hemabies, a flight of creepy birds called Dark Choppers, glistening sea plants called air-pockets, nasty little sea monsters called light-devils, a swarm of teeny tiny flying fish, a mysterious silver castle in a hidden domed land, and infamous Harfhas in search of the wondrous silver scales... This is about the secret world beneath the ocean floor where the sky is the hemisphere mineral layer filled with countless sparkling bubble balls. And that is where Ryan Baker lands. There, Ryan meets a remarkable fellow Leinad in a weird and wonderful way. By all means Ryan is determined to help Leinad who falls into miserable difficulties, but at the same time Ryan strives to overcome the great fears before him. Be brave, be strong, Ryan! Your challenge begins!